diff --git a/.github/workflows/test-unit.yml b/.github/workflows/test-unit.yml
index b07c37c3a..730e951b8 100644
--- a/.github/workflows/test-unit.yml
+++ b/.github/workflows/test-unit.yml
@@ -23,6 +23,7 @@ jobs:
           - image: php:7.3
           - image: php:7.4
           - image: php:8.0
+          - image: php:8.1
         db:
           - image: mysql:5.5
           - image: mysql:5.6